Skip to main content

Full text of "Practical Organic Chemistry"

See other formats


the water bath, and the colourless crystalline residue extracted
repeatedly with .small quantities of absolute alcohol, which
dissolves out the meihylaniinc sail from the ammonium chloride.
I'Yom the hot alcoholic solution foliated crystals separate out
on cooliin*.

.rONH, I- I Jr., -H KOII

* H.tiiiiilr.

<'H:,,<'ONinir ! KOI I

rn:5,X;t";C)  !

(TLj.CONHBr 4- KBr + IU)

Ao'tiitouiiluunuuimir.

t'H:,.N:CX> H- KBr + HO

. Large deliquescent tablets, which melt at 227",
and sublime, above that temperature, with slight decomposition.
The base is liberated on warming with caustic soda, as an in-
llammable j.;as with strong ammoniacal smell. See Appendix,
p. 245.
1'R FJU RATION   15.
Ethyl Acetate  (Acetic Ether), CH3.CO.OCaHfl.
Si herle, (.Vtt'w/ftt/ /i\v.sv/)',v, 1782, p. 307 ; Frankland, Duppa,
/'////. 7/vw.v., 1865, 156, 37 ; l*iibst, Hull. Soc. t'//////., 1880, 33,
;t).
50 c,c, cone, sulphuric acid.
50 c.c. absolute alcohol.1
Mixture of equal volumes of glacial acetic: acid (icx^c.c.)
and absolute alcohol (K.X.J <:.c.).
A distilling flask (A litre) is attached to a condenser and
receiver, The She.!; in provided with a cork, through which a
separating funnel is inserted. The mixture' of 50 c.c. of con-
centrated sulphuric and and 5 (>'('- <*f absolute alcohol is
poured into the flank, which is then heated in a bath of paraffin
wax or fusible metal"* to 140, and kept at this temperature.
The mixture of equal volumes of acetic acid and alcohol is
J ,-1/fMv/ * fittis w,v ''' n.l*n IINM inc'ly thr f,Mw way, untnp, methyl ukohol.
Tllt |*I'iu I i-. ihrsi f>,ii'!i>*n.t(Mi ;ilid (itllt'rtni at  ',7     tt\".
a A lu-alI' -t;tl (Milt li.v. ili' ;ulviUii;ttt<' uv''' " "il'lh of ttrtttirr ^nirlting uor
l*iiit: li.iMr tiM'iitih fi% h i% ittailr by nulling n a smalt ntokiiiK ian one' part
ttl Irtui uutl IWL |,ul- til hKumtii. Thi-i alloy is llttkl abovt? iat>".